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authorThomas Gleixner <tglx@linutronix.de>2013-04-24 20:33:46 +0200
committerThomas Gleixner <tglx@linutronix.de>2013-04-24 20:33:54 +0200
commit6402c7dc2a19c19bd8cdc7d80878b850da418942 (patch)
treecda2ea2df40442e2aa016119f3548cc504127ea8 /arch/mips/kernel/Makefile
parent77c675ba18836802f6b73d2d773481d06ebc0f04 (diff)
parent60d509fa6a9c4653a86ad830e4c4b30360b23f0e (diff)
Merge branch 'linus' into timers/core
Reason: Get upstream fixes before adding conflicting code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/mips/kernel/Makefile')
-rw-r--r--arch/mips/kernel/Makefile25
1 files changed, 6 insertions, 19 deletions
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index f81d98f6184..de75fb50562 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -100,29 +100,16 @@ obj-$(CONFIG_HW_PERF_EVENTS) += perf_event_mipsxx.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
#
-# DSP ASE supported for MIPS32 or MIPS64 Release 2 cores only. It is safe
-# to enable DSP assembler support here even if the MIPS Release 2 CPU we
-# are targetting does not support DSP because all code-paths making use of
-# it properly check that the running CPU *actually does* support these
-# instructions.
+# DSP ASE supported for MIPS32 or MIPS64 Release 2 cores only. It is not
+# safe to unconditionnaly use the assembler -mdsp / -mdspr2 switches
+# here because the compiler may use DSP ASE instructions (such as lwx) in
+# code paths where we cannot check that the CPU we are running on supports it.
+# Proper abstraction using HAVE_AS_DSP and macros is done in
+# arch/mips/include/asm/mipsregs.h.
#
ifeq ($(CONFIG_CPU_MIPSR2), y)
CFLAGS_DSP = -DHAVE_AS_DSP
-#
-# Check if assembler supports DSP ASE
-#
-ifeq ($(call cc-option-yn,-mdsp), y)
-CFLAGS_DSP += -mdsp
-endif
-
-#
-# Check if assembler supports DSP ASE Rev2
-#
-ifeq ($(call cc-option-yn,-mdspr2), y)
-CFLAGS_DSP += -mdspr2
-endif
-
CFLAGS_signal.o = $(CFLAGS_DSP)
CFLAGS_signal32.o = $(CFLAGS_DSP)
CFLAGS_process.o = $(CFLAGS_DSP)